EP1026904A2 - Fourniture de services - Google Patents

Fourniture de services Download PDF

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Publication number
EP1026904A2
EP1026904A2 EP99440146A EP99440146A EP1026904A2 EP 1026904 A2 EP1026904 A2 EP 1026904A2 EP 99440146 A EP99440146 A EP 99440146A EP 99440146 A EP99440146 A EP 99440146A EP 1026904 A2 EP1026904 A2 EP 1026904A2
Authority
EP
European Patent Office
Prior art keywords
service
service control
switching
local
node
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99440146A
Other languages
German (de)
English (en)
Other versions
EP1026904A3 (fr
Inventor
Bernhard Kaiser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel CIT SA
Alcatel Lucent SAS
Original Assignee
Alcatel CIT SA
Alcatel SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Publication of EP1026904A2 publication Critical patent/EP1026904A2/fr
Publication of EP1026904A3 publication Critical patent/EP1026904A3/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/4228—Systems providing special services or facilities to subscribers in networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking

Definitions

  • the invention relates to a service provision system for a Telecommunications network according to the preamble of claim 1, one Switching node for a telecommunications network according to the generic term of claim 10, and a method of providing Telecommunications services according to the preamble of claim 11.
  • a global service control node is connected via the No. 7 signaling network connected to several service exchanges.
  • the service control node controls the central for the service switching centers connected with it Providing one or more telecommunications services.
  • the service switching centers are specially equipped Switching centers of a telecommunications network. Receives one of these Switching centers from a subscriber of the telecommunications network a special connection requirement, so one in the Switch integrated service switching function triggered that then a service request message to the global Service node sends.
  • This service request message triggers in Service control node the assigned service logic, which is then the delivery of the telecommunications service controls, for example, in which Service switching center instructs the connection request with a transfer another destination number or a Drives service support system that creates voice announcements.
  • the Communication between the global service control node and the Service exchanges are here via the No. 7 signaling network guided.
  • the invention is based on the object, the performance of the Increase service delivery.
  • the invention is based on the idea Service exchanges in addition to the connection to a global Service control nodes additionally to assigned local service control nodes to connect via a local communication mechanism and the Service logic for one requested by a service switching center Service depending on the type of service either globally in the global service control node or locally in the associated local Install service control nodes. For each service switching center decided for which services the service control from the global in the assigned local service control node is transferred. For every Service request from a service switching node is determined whether the requested service at the moment from a local or a global Service control node is controlled and communication with the Service control node is controlled accordingly.
  • the advantage of the invention is firstly that the average time and the average effort to provide one Telecommunications service is reduced.
  • a to the respective service type customized service control nodes can be used.
  • the advantages a global service control node (central service provision, better System utilization) are service-specific with the advantages of a local Service control node (faster communication connection) combined.
  • a grouping of special services with common ones Resource utilization is possible.
  • the invention is also inexpensive to implement because existing ones Service switching functions and service control functions in one service provision system according to the invention can be reused can.
  • the load on the signaling network is further increased by the invention decreased.
  • Fig. 1 shows a telecommunications network T_NET with which a terminal TE of a participant A is connected.
  • the T_NET telecommunications network has a signaling network S_NET and a service provision system SDS on, which in turn has several specially designed switching nodes SSP1 to SSP3, several global service control nodes GSCP1 to GSCP2, several local service control nodes LSCP1 to LSCP4 and several local ones Has communication network L_NET1 to L_NET3.
  • the telecommunications network T_NET has in addition to the switching nodes SSP1 to SSP3 on a variety of other switching nodes. It is of course, it is also possible that these switching nodes are assigned to different network operators.
  • the switching nodes SSP1 to SSP3 are each with the Signaling network S_NET and with the local communication networks L_NET1, L_NET2 or L_NET3 connected, with which the local Service control nodes LSCP1, LSCP2 and LSCP3 or LSCP4 are connected.
  • the number of switching nodes SSP1 to SSP3 and the global Service control node GSCP1 to GSCP2 is chosen as an example, but it is at least one such switching node and one such global Service control node connected to the signaling network S_NET.
  • the Local service control nodes LSCP1 to LSCP4 are advantageous spatially very close to the assigned local switching node SSP1, SSP2 or SSP3 arranged, for example, they form different Components of one and the same exchange (exchange in spatial sense).
  • ATM Asynchronous Transfer Mode
  • DQDB Distributed Queue Dual Bus
  • the local service control nodes LSCP1 to LSCP4 also control for them the connected switching nodes SSP1, SSP2 and SSP3 Provision of a first group of telecommunication services.
  • the Global service control points GSCP1 to GSCP2 control centrally for everyone Switching nodes SSP1 to SSP3 the provision of a second group of Telecommunications services.
  • the service logic for the Service control installed either locally or globally, with the installation can vary from switching nodes to switching nodes. With each service request, it is determined in the switching nodes whether control of the requested service locally or globally at the moment is installed and the service request is routed accordingly.
  • Subscriber-specific services are those services that are more narrow are connected to the subscribers served by a switching center and thus, for example, access to subscriber-specific data Service provision or not or only rarely from others Switching nodes are requested. Examples of such services are: "Virtual Private Network” services, "Number Portability” services, “Flexible Tariffing "services,” subscriber screening "services.
  • the following is the structure of the specially designed Switching node SSP1 to SSP3, the service control node GSCP1 to GSCP2 and LSCP1 to LSCP3 and the communication networks L_NET1 BIS L_NET3 explained using the example of FIG. 2.
  • Fig. 2 shows the signaling network S_NET and that Service delivery system SDS with the service control nodes GSCP1 and LSCP1, and the local communication network L_NET1.
  • the switching node SSP1 is a Telephone switching node, for example the switching node Alcatel1000S12. It is of course also possible that this Switching node SSP1 is a switching node that is in addition to Telephone connections also video telephone and / or Data connections mediated.
  • the switching node SSP1 has connection modules for Connection of subscriber lines and / or lines to other switching nodes of the telecommunications network T_NET, over a coupling network for switching connections between the Connection modules and a control CONTR, which u. a. the Establishing connections and signaling with participants and controls other switching nodes. It is also possible that the Connection modules are used to connect mobile users. Of the Components of the switching node differ in this Embodiment only the control of the CONTR corresponding components of a usual switching node.
  • the Control system CONTR is based on a computer system with appropriate peripheral assemblies that consist of a powerful central computer or even several via an internal communication network connected individual computers is established.
  • the Operating system platform is advantageously based on a special tailored for the requirements of a switching node Real-time operating system.
  • the computer system and the operating system platform together form one for the control programs based on them System platform SPL1. Of those provided by these control programs Functions are shown in FIG. 2 by way of example five functions SSF1 to SSF5.
  • the functions SSF1 to SSF5 represent a service switching function. They each monitor connection requests from participants in the Telecommunications network T_NET, which operates via the switching node SSP be directed. If they recognize a special connection request, which requires the execution of a telecommunications service, so it communicates with the assigned to this telecommunications service Service tax function. Criterion for a special connection request can, for example, the one entered in the connection request Number of the called subscriber or the calling subscriber be the one who sent it. Further they carry out the instruction of the Service control function, for example, direct the Forward connection request to another target subscriber or establish a user channel to the calling subscriber.
  • the service control nodes LSCP1 and GSCP1 each have one System platform SPL2 or SPL3, each of one or more interconnected computers and one or more these operating system platforms are formed.
  • the operating system finds, for example, a UNIX operating system Use, on the one to the special function of the service control node LSCP1 and LSCP2 adapted Middelware sets, for example the Alcatel Nectar Telecom Middelware. From the from the to the Control system operating systems platforms SPL2 and SPL3 The functions provided are only three functions SCF3 in FIG. 2 to SCF5 or SCF1 to SCF2 shown.
  • the functions SCF1 to SCF5 each provide service control functions for different telecommunication services. Triggered by a Control service request message from a service switching function they each provide the respective telecommunications service.
  • the Functions SCF1 to SCF5 control the provision of the Telecommunication service here according to that for the respective service installed in the service control node GSCP1 or LSCP1 Service logic program.
  • the local communication network L_NET1 is operated by one or by several LAN (Local Area Network) are formed. Examples of a LAN are Ethernet, Fast Ethernet, Token Ring and FDDI networks. It is also possible, that the local service control node LSCP1 in the control of the Switching node SSP1 is integrated and its functions on their System platform SPL1 are running. In this case, the local communication network L_NET1 can also be dispensed with.
  • LAN Local Area Network
  • the participant A sends one using his terminal TE Connection request to the T_NET telecommunications network.
  • the Connection request is made through the T_NET telecommunications network routed to the switching node SSP1.
  • the function SSF1 recognizes that a first telecommunications service for this connection request to provide.
  • Then sent by the SSF1 function Service request message is then determined whether the requested Service is installed locally or globally.
  • the service and therefore the one for control the provision of this service service functions performed installed globally and so the service request message is sent through the Signaling network S_NET passed to the service control node GSCP1.
  • the Service request message triggers function SCF1, which is then in a dialogue D1 controls the provision of the telecommunications service.
  • the functions SSF2 to SSF5 from Triggered connection requests from other participants, Send service request messages, the different second, third, request fourth or fifth services.
  • the second service is global
  • the third to fifth services are installed locally and so are the Service request messages corresponding to the global Service control node GSPC1 or at the local service control node LSCP1 headed.
  • the service request messages trigger the Service control functions SCF2 to SCF5, which are then in a dialog D2, D3, D4 or D5 the provision of the requested Control telecommunications service.
  • INAP Intelligent Network Applications Protocol
  • FIG. 3 shows the global service control node GSCP1, the local one Service control node LSCP1 and the associated with it Switching node SSP1 with two communication units KOM1 and KOM2 and three control units CONTR1 to CONTR3.
  • the control unit CONTR 1 provides the control unit CONTR performed service switching functions.
  • It has one processing unit AM and several Service switching processes SSFP1 to SSFP5.
  • the service switching processes SSFP1 to SSFP5 each represent the sequence represents a service switching function that the control CONTR is performed.
  • the processing unit AM coordinates and controls the Processing of these processes.
  • the service switching processes SSFP1 to SSFP5 communicate with service-specific for service delivery Service control processes in the GSCP1 or LSCP1 service control nodes the execution of a service logic program as part of the provision the service control function.
  • INAP Intelligent Network Applications Protocol
  • IN application messages IN application messages
  • basic Services and actions of this protocol are, for example, in the Recommendation ITU-T Q.1219, chapter 6.5. Intelligent Network Applications Protocol, pages 26 to 40 and more detailed in the recommendation ITU-T Q.1219 explained for IN CS-1.
  • the control unit CONTR2 determines for each service request message that of one of those executed by the control unit CONTR1 Service switching functions is directed to a service control function whether the service control function associated with the requested service locally or is installed globally. If it is installed globally, it manages it Service request messages by accessing the Communication unit KOM1 on the signaling network S_NET a global service control node, otherwise by accessing the Communication unit KOM2 via the local communication network L_NET1 to a local service control node. The in the provision the service requested by a service request message emerging further between service switching function and Service control function messages are exchanged accordingly this service request message from the control unit CONTR2 redirected.
  • a first way of performing this function is that in the service request message and in the following Messages already the address of a global service node is entered, which is normally the service control function for the provides the requested service.
  • the control unit CONTR2 accesses one Database in which it is noted which services in which global Service control node for the service switching functions of the Switching node SSP1 from a global to a local installation have been transferred. Is the service request message to such one Service of such a service control node, so the Service request message and those associated with the following dialog Messages are redirected to the local service control point LSCP1. Otherwise, the service request message and the following Dialog assigned messages unchanged to the addressed global service node. It is also possible that the cases in which need to be redirected to the service control node LSCP1, can only be determined based on the requested service.
  • a second way of performing this function is to that in the service request message no service control node for the execution of the service control function is localized.
  • the control unit CONTR2 now accesses a database in which all services provided by the service switching functions of the switching node SSP1 can be addressed, the associated service control node is addressed and it is indicated (also implicitly) whether these service control nodes are a local or a global service control node. Will be like this a local service control node is determined, the Service request message and those associated with the following dialog Messages by accessing the communication unit KOM2 to the addressed local service control node LSCP1. Otherwise the service request message and the following dialog assigned messages by means of access to the communication unit KOM1 passed to the addressed global service control node.
  • the Addressing the service control node and controlling the Corresponding transport protocol layers are therefore independent of the control unit CONTR2 by means of access to the communication unit KOM1 and KOM2 made.
  • the database that the control unit CONTR2 accesses is one Switching SSP1 database. It is also possible that it is in this database a central database, for example one Service management facility acts.
  • TCAP Transport Capabilities Application Part
  • SCCP Signaling Connection Control Part
  • MTP Message Transfer Part
  • TCAP Transport Capabilities Application Part
  • This protocol processing unit relies on a protocol processing unit via an adaptation unit on that as a service the transport of messages via a LAN Provides protocol over the local communication network L_NET1.
  • CORBA Common Object Request Broker Architecture
  • TCAP protocol from the control unit CONTR1 is processed.
  • Other protocol layers can already be used by the Control unit CONTR1 can be edited.
  • the Communication unit KOM2 corresponding "Brigding functions" to the transport protocols into the corresponding LAN transport protocols to implement.
  • the control unit CONTR3 controls the local or global installation of Services for the switching node SSP1. Initiated by means of control signals they, the service logic for a special service in the local Download and activate service control node LSCP1 or one in service logic available to the local service control node deactivate. Downloading a service logic can be done manually or online, for example by means of a central server in which a variety of service logics are stored. It is also possible that the control unit downloading or deactivating in the same way controls from service logics to global service control nodes. Has the Control unit the global or local installation of a service in this way changed, it changes the corresponding data in the database which the control unit CONTR2 for determining the global or local Installation of service control functions accesses.
  • control unit determined CONTR3 Parameters of the telecommunications network T_NET monitored and by means of Evaluation of these parameters via the local or global installation of Services for the switching node SSP1 decides.
  • Such Decision can be made when you first install a service or occur dynamically during operation when parameters change.
  • a parameter can be, for example, how often the rendering of a Telecommunication service from the switching node SSP1 pro Unit of time is required. If this value exceeds a certain threshold, then the service is installed locally. If the value falls below a threshold, then it will be installed globally again.
  • the installation change can still from the following parameters are made dependent: utilization of the central Service control node, utilization of local service control nodes, utilization of the signaling network, required quality of service for subscribers etc.
  • the local or global installation of subscriber-specific services or services decided by the Service provision can use data of the switching node SSP1.
  • the Change of installation can depend on the following parameters frequency of requesting the services in the Switching node SSP1, number of services already installed locally access all or part of the same data, utilization of the central Service control node, utilization of local service control nodes, utilization the signaling network, required quality of service for subscribers, etc.
  • control unit CONTR3 may be part of a central Facility, for example part of a service management facility or Network management facility is.
  • the CONTR3 control unit can of course also be dispensed with.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Exchange Systems With Centralized Control (AREA)
EP99440146A 1998-06-30 1999-06-18 Fourniture de services Withdrawn EP1026904A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829026 1998-06-30
DE19829026A DE19829026A1 (de) 1998-06-30 1998-06-30 Dienstbereitstellungssystem

Publications (2)

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EP1026904A2 true EP1026904A2 (fr) 2000-08-09
EP1026904A3 EP1026904A3 (fr) 2002-01-30

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EP99440146A Withdrawn EP1026904A3 (fr) 1998-06-30 1999-06-18 Fourniture de services

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US (1) US6594285B1 (fr)
EP (1) EP1026904A3 (fr)
JP (1) JP2000115366A (fr)
CA (1) CA2276343A1 (fr)
DE (1) DE19829026A1 (fr)

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US9026657B2 (en) * 2010-12-03 2015-05-05 Synchronoss Technologies, Inc. Method and system for provisioning telecommunication services and equipment using sequential or parallel processing

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CA2276343A1 (fr) 1999-12-30
JP2000115366A (ja) 2000-04-21
DE19829026A1 (de) 2000-01-05
EP1026904A3 (fr) 2002-01-30
US6594285B1 (en) 2003-07-15

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